13. Heterotrophs are organisms that consume other organisms in order to gain energy. Compare two different categories of heterotrophs in terms of how they obtain energy. Explain your answer in one to two sentences.(2 points)

humans can cause extinction of a species through overharvesting, pollution, habitat destruction, introduction of invasive species (such as new predators and food competitors), overhunting, and other influences. explosive, unsustainable human population growth is an essential cause of the extinction crisis.

explanation:

i didn't have the answer choices , but i tried my best.

"a.) well–developed vascular system."

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.

b. climate change will cause an increase in biodiversity of all ecosystems.

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